-7/(y-8)=-4

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Solution for -7/(y-8)=-4 equation: 


D( y )

y-8 = 0

y-8 = 0

y-8 = 0

y-8 = 0 // + 8

y = 8

y in (-oo:8) U (8:+oo)

-7/(y-8) = -4 // + 4

4-7/(y-8) = 0

(4*(y-8))/(y-8)-7/(y-8) = 0

4*(y-8)-7 = 0

4*y-39 = 0

(4*y-39)/(y-8) = 0

(4*y-39)/(y-8) = 0 // * y-8

4*y-39 = 0

4*y-39 = 0 // + 39

4*y = 39 // : 4

y = 39/4

y = 39/4

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